Window sash weather seals



June 3, 1969 P. NACHTSHEIM 3,447,266

WINDOW SASH WEATHER SEALS Filed Dec. 18, 1967 Sheet Z of 2 =28 Fl G. 1 B

FIG. 2

I N VENTOR.

June 3, 1969 P. NACHTSHEIM 3,447,265

I WINDOW SASH WEATHER SEALS Filed Dec. 18, 1967 Sheet 3 i l M1w IN VEN'TOR.

FIG.9

United States Patent 3,447,266 WINDOW SASH WEATHER SEALS Peter Nachtsheim, South Plainfield, NJ. (Box 368, Montreal 3, Quebec, Canada) Filed Dec. 18, 1967, Ser. No. 691,662 Int. 'Cl. E05d 15/16, 15/06, 13/00 U.S. Cl. 49-458 5 Claims ABSTRACT OF THE DISCLOSURE The sash supporting frames are preferably made of metal with the sashes made of plastics. But any combination with a differential of elasticity and resilience between frames and sashes is also desirable, with such materials as metal, wood, asbestos, rubber, fiberglass and plastics to choose from.

The object of this invention is to show the use of a new and better weather sealing system, applied to a double-hung sash combination, having an upper and lower vertically sliding sash. The weather seals are symmetrical about the windows vertical centerline. All details and features shown on one side apply also to the opposite side. When the sashes are closed advantage is taken of the wedging force and action, that is produced at their meeting rails with their vertically inclined contact surfaces for the full width of the sashes, which force tends to push the sashes apart, the upper sash outdoors and the lower sash indoors. The upper sash then is also forced into a wedge shape contact on its indoor facing head rail with a wedge shaped recess of the holding frame for its full width, that then also tends to push it outdoors. The side stiles connected to the upper sashs head rail and meeting rail join then in this unified push of the upper sash against its holding frame and outwardly, thereby pushing and weather sealing the upper sashs periphery against its frame, without the use of weather stripping. The lower sash similarly is forced at the bottom of its outdoor facing side stiles into a registering wedge shaped contact with its holding frames lower jambs, where it supports and tends to push indoors the joined sash side stiles and the connected lower sashs bottom rail; this construction also permits unobstructed drainage of the supporting 'frames sill floor. The side stiles of the lower sash connected to its meeting rail and to the sash bottom rail then join for a unified push of the lower sash against its holding frame inwardly, thereby weather sealing the lower sash periphery against its holding frame without using any weather stripping.

Another object is the provision of Weather stripping at the closed meeting-rail ends and at the parting bead jambs to close off the openings between the sashes and the window frame at the meeting-rail level when the window is being closed, for a yielding elastic buffer contact and weather stripping seal, easily serviced, to complete the weather seal between sashes and their holding frames. Present day Windows in closing against wind and rain tend to push the upper sash outwardly at the meeting rail and inwardly at the head, while the lower sash is pushed inwardly at the meeting rail and outwardly at the sill, which causes leaks at both jambs; this invention stops these jambs leaks. For weather stripping material the use of asbestos, fiberglass, rubber, wool, metal and plastics or a combination of them ofifers a wide range of choice.

The primary object and summary of this invention is a simplified weather sealing .and weather stripping system for double-hung windows, that reduces the cumbersome and expensive weather stripping as used today to a minimum, for a more eflicient and economical window. When the window sashes are slightly opened, there is no more friction between weather stripping and sashes, as always is in existing windows, for easier sash manipulation. The weather stripping and weather sealing is disengaged and by-passed in the open window, leaving only the built-in friction between sashes and frames for operation and consideration. This then effects savings in material, labour and maintenance. The sash combination can be supported by an indoor swinging sash frame, that is supported by a wall fixed frame as shown in the cited patent or the sash combination can be directly supported by wall fixed frame only. Also the upper sash can be fixed in its frame in the usual manner, so as to mak it stationary.

The materials shown in the windows are metal and the weather stripping shown is neoprene rubber.

Further objects and advantages of the invention will be apparent from the following specification and the accompanying drawings in which:

FIGURE 1-A is an outdoor view of the improved window, in which the sash combination is shown in a metal modular setting, serviceable the year around; it shows a double-hung sash combination supported by an indoor swinging frame, that has a fixed frame wall support.

FIGURE 1-B is a vertical cross section of a doublehung sash combination supported by a fixed wall frame.

FIGURE 2 is a section on line 2-2 of FIGURE I-A.

FIGURE 3 is a section on line 3--3 of FIGURE l-A.

FIGURE 4 is a section on line 44 of FIGURE 3.

FIGURE 5 is a section on line 5-5 of FIGURE 4.

FIGURE 6 is a section on line 66 of FIGURE 4.

FIGURE 7 is a section on line 7-7 of FIGURE 4.

FIGURE 8 is a section on line 88 of FIGURE lA.

FIGURE 9 is a section on line 9-9 of FIGURE l-A.

FIGURE 10 is a section on line 10-10 of FIGURE 9.

FIGURE 11 is a partial section on line 11-11 of FIG- URE l-A.

In FIG. 1-A the window is shown to consist of a fixed frame 1, secured to the building wall in the usual manner, and a swinging frame 2, hinged on one side to the fixed frame 1, to swing inwardly and having catches on the opposite side. The swinging frame carries two parallel vertically moving sashes 3 and 4, the latter being the lower and inner sash and serving at times as a vertically moving bolt to prevent the frame 2 from swinging when sash 4 is in lowered position. The sashes 3 and 4 are glazed and shown in closed position. As in my Patent 3,214,801 Nov. 2, 1965, stool 5 (FIG. 9) is fastened to the swinging frame 2, hence when one seeks to open the swinging frame 2 with the sash 4 down, the bottom of this sash strikes the face stop '6 of projection 7 which is a part of the fixed frame 1, so that the swinging frame 2 with stool 5 may not be moved to opening position as long as sash 4 is in lowest and closed position. The upper sash 3 can slide up and down or selectively be fixed by securing it directly to the swinging frame 2 in the usual manner. The lower sash 4 can slide up and down.

In FIG. l-B the window cross section shows the head 8, meeting rail 9 and sill 10. It has a fixed frame 11, secured to the building wall in the usual manner. The fixed frame 11, with two parallel vertically moving sashes 3 and 4, the latter being the lower and inner sash. The upper sash 3 can slide up and down or selectively be fixed by securing it to fixed frame 11. The lower sash 4 can slide up and down. The sashes shown in FIG. 1-B are similar to those shown in FIG. 1-A. The fixed frame 11 has 2 sets of continuous parallel recessed track guides 12 and 13, with indoor stop 14, outdoor stop 15 and parting head 16. Track guide 12 is for upper sash 3 and track guide 13 is for the lower and inner sash 4. Parting bead 16 protrudes to separate upper sash 3 and lower sash 4; at thehead 8 it contacts the closed sash 3 in a vertically inclined plane 17 for its full width with a similarly inclined plane 18 of upper sash 3 to form joint 19.

At meeting rails 9 the bottom rail 20 of closed upper sash 3 contacts the closed sash 4 in a vertically inclined plane 21 for its full width with a similarly inclined plane 22 of the upper rail 23 of sash 4 to form joint 24.

As sill 10 the parting bead 16 contacts the closed sash 4 in a vertically inclined plane 25, only for the depth of the parting bead, and at both jambs of the window with a similarly inclined plane 26 of lower sash 4 to form joint 27.

In FIG. 2 is shown the window head 28, showing wall mullion 29, that supports the fixed frame 1, which holds the swinging frame 2 with gasket 30. Frame 2 has two sets of continuous parallel recessed track guides 31 and 32, with indoor stop 33, outdoor stop 34 and parting bead 35. Track guide 31 is for upper sash 3 and track guide 32 is for the lower sash 4. Parting bead 35 protrudes to separate upper sash 3 and lower sash 4 and at the head 28 it contacts the closed sash 3 in a vertically inclined plane 36 for its full width with a similarly inclined plane 37 of upper sash 3 to form joint 38.

In FIG. 3 is shown the closed windows jamb 39, with wall mullion 40 that supports fixed frame 1, which holds the swinging frame 2 with a hinge 41 connection. Frame 2 holds gasket 30, stool 5 and has two continuous parallel recessed track guides 31 and 32, with indoor stop 33, outdoor stop 34 and parting bead 35. Upper sash 3 is shown in section, holding glazing 42; just above its meeting rail 43 in contact with the meeting rail 44 of lower sash 4. Weather stripping 45 closes opening 46 between swinging frame 2 and closed lower sash 4, closes opening 47 between closed sashes 3 and 4 and parting head 35 and also closes opening 48 between closed sash 3 and swinging frame 2 for a continuous horizontal seal, while contact 49 between swinging frame 2 and sash 4 and contact 50 between swinging frame 2 and sash 3 in compression.

In FIG. 4, which is a sectional elevation without the sashes of the jamb 39 meeting rails level, weather stripping 45 is shown closing off the meeting-rail ends of the closed window against track guides 31 and 32, and parting bead 35; FIGURES 5, 6, 7 and 8 illustrate this further.

In FIG. 5 is shown how the closed upper sash 3 at its bottom rail 43 has a turned up projection 51, that is in sealing contact with weather stripping 45, which in turn is encased in a channel 52 of swinging frame 2, for the width of the sash in track guide 31 of jamb 39.

In FIG. 6 is shown how weather stripping 45, at the same elevation as in FIGURE 5, is encased around parting bead 35 in 'a channel 53 of frame 2 and on three sides of parting bead 35, for sealing contact with meeting rail 43 and meeting rail 44, when the window is closed.

In FIG. 7 is shown how the closed lower sash 4 at its top rail 44 has a turned down projection 54, that is in sealing contact with weather stripping 45, which in turn is encased in a channel 55 of swinging frame 2 for the width of the sash, in track guide 32 of jamb 39.

In FIG. 8 at the meeting rails the bottom rail 43 of closed upper sash 3 contacts the closed sash 4 in a vertically inclined plane 56 for its full width with a similarly inclined plane 57 of the upper rail 44 of sash 4 to form joint 58 and held closed with sash lock 59.

In FIG. 9 at sill 60 is shown the wall mullion 61 hold ing fixed frame 1, which supports the swinging frame 2 and gasket 62 in stool 5 of frame 2. Frame 2 has two sets of parallel recessed track guides 31 and 32 with indoor stop 33, outdoor stop 34 and parting bead 35. Track guide 31 is for upper sash 3 and track guide 32 is for the closed lower sash 4. The indoor stops 33 are connected to stool 5, to bear against sash 4 horizontally. Handhole 63 is for sash 4 manipulation. Fixed frame 1 has two continuing recessed track guides 31A and 32-A, which line up with track guides 31 and 32 respectively. Track guide 31A has outdoor stop 64 and perpendicular parting bead stop 65. Closed lower sash 4 (FIG. 10) has vertically inclined plane 66,- only for the depth of the parting bead 35-A, contacting similarly inclined plane 67 of the parting bead 35A to form joint 68; the side stile 69 of sash 4 for the depth of the parting bead 35-A and on its indoor face 70, in track guide 32-A, is perpendicular.

In FIG. 11 is shown an added reinforcement of the closed meeting rails 43 and 44, consisting of an interlocking of extension 71 of the upper sash 3 meeting rail 43 bottom, that has a vertical extension 72 and weepholes 73. Extension 71 interlocks with a corresponding recess 75 and a downward extension 76 of meeting rail 44, for a stronger combination with added weather sealing for stopping rattling of and damage to closed window in windy weather.

The embodiment of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A window structure comprising a sash frame having a head, two jambs and an outwardly sloping sill, an upper sash and a lower sash, sliding parallel to each other, in said sash frame and in corresponding recessed track guides having a protruding parting bead between them at head and jambs of the sash frame, the upper sash bottom and the lower sash top each having a meeting rail facing the other when both sashes are closed, each having a down and inwardly sloping contact face reaching from jamb to jamb of said sash frame, with the upper sash top, when closed, contacting the sash frame head parting bead and each with a down and inwardly sloping contact face reaching from jamb to jamb of said sash frame, with the lower sash bottom, when closed, contacting the sash frame jambs at the frames sill connection with a down and inwardly sloping contact face of its parting bead for the depth of the parting bead only, to permit unified continuous forcing contact of the upper sash against its sash frame head and jambs outwardly and also permit unified continuous forcing contact of the lower sash against its sash frames jambs and sill inwardly, when both sashes are closed, for weather sealing with their meeting rail faces forced together between both sashes and between both sashes and their sash frame.

2. The window structure of claim 1, the sash frame at the contact level with said meeting rails or closed upper and lower sashes, having a holding channel reaching for the width of the meeting rails of upper and lower sash track guides, around the sash facing parting bead, permitting insertion of a resilient weather stripping for a complete weatherseal between upper and lower sashes and between their sash frame at head, jambs and sill, when the Window is closed.

3. The window structure of claim 2 with the sash frame consisting of a fixed frame holding a hinged, inwardly swinging frame.

4. The window structure of claim 2, with the meeting rail bottom of the upper sash for its full width having a horizontal narrowed extension inwardly, with an additional short vertical projection at its end, the meeting rail bottom of the lower sash for its full width having a matching registering narrowed recess inwardly with an additional short vertical recess inwardly above and behind the narrowed recess, grooved to lock horizontally both meeting rails for added reinforcing of them and for additional weather sealing when the window is closed.

5. The window structure of claim 3, with the fixed frame and the hinged, inwardly swinging frame, each having a head, jambs and a sill, the sill of the fixed frame 5 6 has an additional, registering vertically rising projection 2,333,742 11/1943 Reese 49-406 at both jamb sides and the swinging frame is grooved 2,630,891 3/1953 Zitomer 49--458 X to swing freely over said projections, with the lower por- 2,781,111 2/ 1957 Kunkel 49458 X tion of the lower sash when closed, acting as a sliding 3,214,801 11/1965 Nachtsheirn 49-164 expansion bolt, preventing horizontal movement and 5 swinging of th swinging f ame, DAVID J. WILLIAMOWSKY, Primary Examiner.

Referencgs Cited J. KARL BELL, Assistant Examiner.

UNITED STATES PATENTS US. (:1. X.R. 1,809,121 6/1931 Hart 49-458 X 10 406 

